Stator and motor having the same

Abstract

Disclosed herein is a stator including: a plurality of stator cores; a coil wound around each of the plurality of stator cores; and an injection part injection-molded between the plurality of stator cores.

What is claimed is: 
     
         1 . A stator comprising:
 a plurality of stator cores;   a coil wound around each of the plurality of stator cores; and   an injection part injection-molded between the plurality of stator cores.   
     
     
         2 . The stator as set forth in  claim 1 , wherein the plurality of stator cores include:
 a plurality of support parts; and   a plurality of teeth parts extended from the plurality of support parts, respectively, and having the coil wound therearound.   
     
     
         3 . The stator as set forth in  claim 2 , wherein the injection part is integrally formed on outer surfaces of end portions of the plurality of teeth parts by insert injection molding. 
     
     
         4 . The stator as set forth in  claim 3 , wherein the teeth part includes:
 a winding part extended from the support part and having the coil wound therearound; and   an extension part formed at an end portion of the winding part to prevent separation of the coil, and   the injection part is formed along an outer surface of the extension part.   
     
     
         5 . The stator as set forth in  claim 4  wherein the extension part is extended from the end portion of the winding part to both sides in a circumferential direction. 
     
     
         6 . The stator as set forth in  claim 1 , further comprising a plurality of stator blocks coupled between the plurality of stator cores. 
     
     
         7 . The stator as set forth in  claim 2 , further comprising a plurality of stator blocks coupled between the support parts of the plurality of stator cores and extended from the support parts in a circumferential direction. 
     
     
         8 . A stator comprising:
 a plurality of stator cores;   a coil wound around each of the plurality of stator cores; and   a plurality of stator blocks coupled between the plurality of stator cores.   
     
     
         9 . The stator as set forth in  claim 8 , wherein the plurality of stator cores include:
 a plurality of support parts; and   a plurality of teeth parts extended from the plurality of support parts, respectively, and having the coil wound therearound.   
     
     
         10 . The stator as set forth in  claim 9 , wherein the plurality of stator blocks are coupled between the support parts of the stator core and extended from the support parts in a circumferential direction. 
     
     
         11 . The stator as set forth in  claim 9 , further comprising an injection part integrally formed on outer surfaces of the plurality of teeth parts by insert injection molding. 
     
     
         12 . The stator as set forth in  claim 9 , wherein the teeth part includes:
 a winding part extended from the support part and having the coil wound therearound; and   an extension part formed at an end portion of the winding part to prevent separation of the coil, and   the injection part is formed along an outer surface of the extension part.   
     
     
         13 . The stator as set forth in  claim 12 , wherein the extension part is extended from the end portion of the winding part to both sides in a circumferential direction. 
     
     
         14 . A motor comprising:
 a rotor including a shaft, a rotor core coupled to the shaft, and a magnet mounted in the rotor core; and   a stator including a plurality of stator cores positioned so as to face the magnet, a coil wound around each of the plurality of stator cores, and an injection part injection molded between the plurality of stator cores.   
     
     
         15 . The motor as set forth in  claim 14 , wherein the plurality of stator cores include:
 a plurality of support parts; and   a plurality of teeth parts extended from the plurality of support parts, respectively, and having the coil wound therearound.   
     
     
         16 . The motor as set forth in  claim 14 , wherein the injection part is integrally formed on outer surfaces of end portions of the plurality of teeth parts by insert injection molding. 
     
     
         17 . The motor as set forth in  claim 15 , wherein the teeth part includes:
 a winding part extended from the support part and having the coil wound therearound; and   an extension part formed at an end portion of the winding part to prevent separation of the coil, and   the injection part is formed along an outer surface of the extension part.   
     
     
         18 . The motor as set forth in  claim 17 , wherein the extension part is extended from the end portion of the winding part to both sides in a circumferential direction. 
     
     
         19 . The motor as set forth in  claim 14 , wherein the stator further includes a plurality of stator blocks coupled between the plurality of stator cores. 
     
     
         20 . The motor as set forth in  claim 15 , wherein the stator further includes a plurality of stator blocks coupled between the support parts of the plurality of stator cores and extended from the support parts in a circumferential direction.